Outsole roughing machine



March 25, 1952 E. w. STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 1 [n ventorErnest W Stacey March 25, 1952 E. w. STACEY 2,590,135

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 1 4 Sheets-Shee't 2Inventor Ernest WStacey 5 his Azfto 1 y March 25, 1952 E. w. STAC ZEY2,590,136 OUTSOLE ROUGHING MACHINE I Filed Nov. 24, 1950 14 Sheets-Sheet3 & H I Inventor 3;; 0 Ernest W Stacey 5 1' Attb March 25, 1952 E. w.STACEY OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 4Inventor Ernest. W5'tacey March'25, 1952 E. w. STACEY OUTSOLE ROUGHINGMACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 5 [n 1209211502 E772 est W.Stacey March 25, 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE l4Sheets-Sheet 6 Filed Nov. 24, 1950 lnveniow E7776 t W Stacey March 25,1952 E. w. STACEY ouwsouz ROUGHING MACHINE l4 Sheets-Sheet 7 Filed Nov.24, 1950 U] P 0m t5 mm n m E 1952 E. w. STACEY OUTSOLE ROUGHING MACHINEi4 Sheets-Sheet 8 March 25 Filed NOV. 24, 1950 lnven tar Ernest WStaceyMarch 25, 1952 E. w. STACEY OUTSOLE ROUGHING MACHINE l4 Sheets-Sheet 9Filed Nov. 24, 1950 W m n 8 m I Ernesz W Stacey March 25, 1952 E. w.STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet 10 Inventor76 372 es t W Stacey March 25, 1952 w, STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed NOV. 24, 1950 14 Sheets-Sheet l1 [nventawErnest W Stacey March 25, 1952 w STACEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 14 Sheets-Sheet l2 mac @1Inventor rnes't WStqcey' w I a I T1 14. v

March 25, 1952 w STACEY OUTSOLE ROUGHING MACHINE 14 Sheets-Sheet 13Filed NOV. 24, 1950 Inventor I Emgt W. Stacey March 25, 1952 E. w.s'rAcEY 2,590,136

OUTSOLE ROUGHING MACHINE Filed Nov. 24, 1950 AlAAAAA L I- l A A A A AInventor Ernest WStacey his Att 14 Sheets-Sheet 14 r Patented Mar. 25,1952 UNITED STA ES FAEEZN'E GFFICE OUTSOLE RGUGHING MACHINE ApplicationNovember 24, 1950, Serial No. 197,213

45 Claims.

This invention relates to machines for roughing shoe parts and is hereinillustrated as embodied in a machine for roughing the margins of theflesh sides of outsoles preparatory to the cement attachment of saidoutsoles to shoes.

Machines heretofore used in the preparation of loose outsoies for cementattachment to shoes have been subject to various objections, one of saidobjections being that the roughing tool, in operating upon shank reducedoutsoles, tends to destroy the previously formed and desired break lineof the outsole. Moreover, difficulty has been experienced in forming onthe margin of the flesh side of the outsole a properlyroughened band ofuniform width and in forming simultaneously therewith at the edge of theoutsole a uniformly wide unroughened portion which is sometimeschamfered and which in the finished shoe projects beyond the shoe upper,and accordingly, if not of uniform size and shape, mars the appearanceof the shoe.

It is an object of the present invention to provide a roughing machinewhich will quickly and effectively form on the margin of the flesh sideor face of a loose shank reduced outsole a uniformly wide roughened bandand which will form simultaneously therewith at the edge of said face ofthe outsole along said band a smooth edge strip or chamfer of uniformsize and shape.

With the above object in view, and in accordance with a feature of thepresent invention, the illustrative machine by the use of which outsolesmay be roughened quickly and effectively, comprises a tool rotatableabout an axis and having teeth arranged approximately in a frustoconical surface generated about said axis, an arcuate edge gage arrangedtoward said axis from said frusto conical surface, work feeding means,and mechanism comprising said edge gage for guiding a work piece, forexample, a loose outsole, acted upon by said means past the tool, theaxis of rotation of the tool lying outside of said outsole and beingtilted toward a portion of a face of the outsole being operated upon bysaid tool.

The present invention consists in the above features and other novelfeatures by the use of which a smooth and evened outer strip may beformed simultaneously with the roughened band and which are hereinafterdescribed with reference to the accompanying drawings showingembodiments of the invention selected for purposes of illustration, theinvention being fully described ,in the following description andclaims.

In the drawings,

2 Fig. 1 is a side elevation of the illustrative machine as viewed fromthe right of the machine;

Fig. 2 is a plan View of the machine;

Fig. 3 is a side elevation of the operating head of the machine asviewed from the left of said.

machine;

Fig. 4 is a view on line IV-IV of Fig. 2;

Fig. 5 is a view on line V-V of Fig. 3;

Fig. 6 is a plan view, partly broken away, showing portions of theoperating head of the machine;

Fig. 7 is a section on line VII--VII of Fig. 6;

Figs. 8 and 9 are views partly on lines VIII VIII and IXIX respectivelyof Fig. '7;

Fig. 10 shows a portion of the drive of the machine as viewed on lineX-X of Fig. 1;

Fig. 11 is a section on line XI-XI of Fig. 10;

Fig. 12 is a view showing instrumentalities of the machine in theprocess of roughing a shank reduced outsole;

Fig. 13 is an enlarged perspective view of an i1- lu'strative roughingtool of the machine;

Fig. 14 is a perspective view showing a portion of a roughing toolblades of which are slightly different from blades of the roughing toolshown in Fig. 13;

Fig. 15 is a view on line XV-XV of Fig. 12 showing the roughing tool inthe process of operating upon an outsole;

Fig. 16 is a diagrammatic view showing in dashlines a head of theroughing tool and a frusto conical surface in which tip portions ofteeth of the roughing tool travel and also showing the angular relationof said surface and an outsole during the outsole roughing operation;

Fig. 17 is a diagrammatic view showing in plan and on a reduced scalethe roughing tool head and the frusto conical surface illustrated inFig. 16 together with edge gages of the machine and also showingportions of an outsole presented, during two different stages of theoutsole roughing operation, to the tool head and the edge gages;

Fig. 18 is a view similar to Fig. 15 but showing a modified tool forsimultaneously roughing the margin of the 'fiesh'side of an outsole andchamfering the marginal edge of said outsole to the form shown in Fig.22;

Fig. 19 is a view similar to Fig. 18 illustrating a further modifiedroughing tool which in addition to roughing the margin of the flesh sideof an outsole forms a, smooth countersunk strip along the edge of saidoutsole as shown in Fig. 23;

Fig. 20 illustrates a rough tool similar to that shown in Figs. 13 and15 but having an inner tooth of each of its blades removed in order toform on the flesh side of an outsole a roughened band which is spacedfrom the edge of the outsole by an original portion of the flesh side ofthe outsole as shown in Fig. 24;

Fig. 21 shows in perspective an outsole which has been operated upon bythe machine illus trated in Figs. 1 to 17; and

Figs. 22 to 24 illustrate portions of the outsoles which have beenroughened by the machine equipped with the modified tools illustrated inFigs. 18 to 20 respectively.

The illustrative machine will be described with reference to roughingthe margins of flesh sides or faces 36 (Figs. l, 9, 12, 15, 16, 17 and21) of loose outsoles 32 which have been previously shank reduced toform beveled surfaces 34, and comprises a work feeding and guiding unit36, an outsole roughing tool 38, a mount 40 for supporting the tool forrotation about an axis 4|, and driving mechanism 42 (Figs. 1, 2 and forthe tool, said unit and said mount being supported upon a platform 44secured to the upper end of a fabricated sheet metal column 46 (Fig. 1).Power for operating the machine is supplied by a motor 48 supported upona pedestal 50 secured to a base portion of the column 46. It iscontemplated, if desirable, to provide two motors, one for drivin theroughing tool 38 and the other for driving the work feeding and guidingunit 36.

The outsole to be roughened is placed upon a work table 52 by theoperator who, after depressing a treadle 54 (Fig. l) to cause inner andout er concentrically arranged rotatable sleeves or rings 55, 58 (Figs.3, 4, 6, 7 and 8) on the one hand and a resilient frusto conical feedroll 65 (Figs. 1, 2, 3, 6, 7, 9, and 12) on the other hand to be loweredaway from the roughing tool and a toothed feed wheel 62 respectively,manually slides the heel portion of the outsole 32 over the table untilits edge engages a cylindrical edge gage 64 and simultaneously therewithslides another portion of the outsole between the feed roll and thetoothed feed wheel 62 until its edge engages an edge gage 66. Uponrelease of the treadle 54 theoutsole is gripped between the feed roll 65and the feed wheel 82 and immediately thereafter is forced against theroughing tool 38 by the sleeves 56, 58, the outsole being moved withcross feed action lengthwise of its margin over the sleeves 56, 58 andpast the roughing tool 38 to form on the outsole a roughened band 31(Fig. 21). When the margin of the outsole has been roughened from apoint somewhat rearward of one end of its heel breast line 65 to a pointsomewhat rearward of the other end of said line, the operator depressesthe treadle 54 thereby releasing the outsole from the machinepreparatory to manually removing the outsole from the machine andpresenting another outsole to be roughened to the machine. It issometimes desirable to have the roughened band extend around the entiremargin of the flesh side 36 of the outsole 32 in which event it iscustomary to start the roughing operation at the forepart of the outsoleand to cause the outsole to make slightly more than a completerevolution in the machine.

The work table 52 is constructed and arranged effectively to support,without assistance by the operator, the outsole 32 as it moves in aclosed pathlengthwise of its edge past the roughing tool 38.; Thesleeves or rings 55, 58 which serve as and may be defined as worksupports and which may be considered as part of the table, as will beherein explained, are yieldingly supported independently and areconcentrically arranged about an axis 63 of rotation, the upper ends,rims, faces or work supporting and feeding portions of the sleeves beingat all times positioned slightly above an upper surface I6 of the table52 and being adapted effectively to present to the roughing tool 38 theshank reduced outsole 32.

The work feeding and guiding unit 35 comprises a drive sleeve I2 (Figs.3, 4, '7 and 8) to which a gear 5 4 is secured by screws 76 (Fig. 7),said sleeve being constrained against vertical displacement in a fixedmain frame I3, which is secured to the platform 44, by the gear 14 andby a flange portion 89 of the drive sleeve. The flange portion 86 of thedrive sleeve I2 fits in slots 82, 84 formed in the inner and outersleeves 56, 58 respectively, said drive sleeve having formed in it abore 86 for receiving slidingly a shank 88, of the outer sleeve. Theouter sleeve 58 is provided with a bore 90 for receiving a shank 92 ofthe inner sleeve 56, the lower ends of the shanks 88, 92 of the outerand inner sleeves having formed in them annular grooves 94, 96 forreceiving pins 38, I66 (Figs. 3 and 5) carried by inner ends ofbifurcated arms I62, I64 pivotally mounted on pins I66, I08 supported inbrackets which are secured to the platform 44 and may be considered aspart of the frame I8.

The inner ends of the arms I02, I64 are constantly urged upward bysprings H4, H6 the upper ends of which are attached to depending lugssecured to the table 52 and the lower ends of which are attached to lugsI69, I H adjustably mounted in slots II 3, H5 (Fig. 5) of said arms. Inorder to limit the upward extents of movement of the inner and outersleeves 56, 58 under the action of the springs H4, H6 there are threadedinto the outer end portions of the arms I52, I64 screws H8, I28 thelower ends of which are arranged to engage stop faces I22, I 24 of lugswhich are secured to the platform 44 and constitute part of the frame78. Outsole engaging rims of the inner and outer sleeves 56, 58 haveflattened portions, hereinafter referred to, and when there is no workin the machine the inner sleeve is raised just above the outer sleeve asbest shown in Fig. 7. The initial positions of the inner and outersleeves 56, 58 may be quickly and effectively varied by the use of thescrews H8, I25, and the spring applied forces imparting upward movementto the sleeves may be varied by securing the lugs I89, III in differentoperating positions in the slots H3, H5. In order to insure that thesleeves 56, 58 cannot be raised into the path of the roughing tool 38,the arms I62, I84 have secured to them depending bosses I25, I28 whichare constructed and arranged to engage the stop faces I 22, I24 wheneverthe screws H8, I20 are removed from the bosses or are so adjusted thattheir lower ends do not project from said bosses.

The roughing tool 38 comprises a head I36 (Figs. 4, l3 and 14) providedwith channels or slots I32 which may be said to face generallylengthwise of the axis 4| of rotation of the tool 38 and in which aresecured associated pairs of presser members or feet I34 and blades I36.The bottoms of the channels I32 are inclined to a plane normal to theaxis 4| of rotation of the roughing tool 38 at an angle approximatelyequal to a cone angle of a frusto conical face I 35 of the head I 30which conical face may be described as having elements inclined at aslight angle to said plane.

fl'he presser feet I34, except for the slots I38 (Fig. 13) hereinafterreferred to, overlie the entire bottoms of associated channels I32,flanges I 43 of said presser feet being engaged by associated blades I36which are illustrated as having teeth 150 at their opposite margins,faces |4| of saidflanges being beveled to accommodate back raked edgesI45 of the teeth which are forced against said flanges. The presser feetI34 are provided with the slots I38 for receiving pins I40 which arecarried by the tool head I30 and project into the corresponding channelsI32. The blades I36 have faces provided with frusto conical holes orrecesses I42 into which are inserted conical inner ends of screws I44which are threaded into said head and force the blades against angularlydisposed portions of the associated presser feet I34 which may bedescribed as L"-shaped.

The channels I32 and accordingly the presser feet I34 and the blades I36are skewed at angles I48 (Figs. 12, and 17) with relation to associatedor corresponding radial planes I49 (Fig. 17) which include the axis ofrotation 4! and pass through the outer ends of the presser feet and theblades, thereby insuring that the V-shaped teeth I50, which projectbeyond work engaging faces I41 of the presser feet andare substantiallycircumferentially disposed with relation to the axis 4| and which arecommonly in alinement with I corresponding teeth of the other blades,shall clear themselves in the work and assist the presser members inwiping the outsole being roughened inward toward the edge gage 64.

In order further to insure that the teeth I50 of the roughing tool 38shall "clear themselves in the work alternate teeth of the blades I36,as shown in Fig. 14, may be eliminated, the con- 'struction andarrangement being such that in tools 38 having an even number of bladesonly a the teeth of every other blade are in circumferential alignment.

When the presser feet I34 and the blades I36 have been secured in theiroperating positions inthe tool head I30, leading tips II (Fig. 13) ofthe edges or ridges I45 of the V-shaped teeth I50 of each of the bladeslie approximately in a line I52 (Figs. 13, and 16) disposed atapproximately 4 to a plane I54 (Figs. 16 and 17) which is at rightangles to theaxis 4| of rotation of the tool 38 and defines an inner endof a frusto conical surface I53 (Fig. 16) having the axis 4| as acenter. 'The edge or ridge I of each of the teeth I has a slight backrake as it extends away from the work engaging face I41 of an associatedpresser member I34. Since the tips I5! of the teeth I50 of each of theblades I36, which tipsmaybe'described as apex portions or vertices ofthe teeth, lie in one of the lines I52, the teeth and their tips may beconsidered as lying or being disposed approximately in the frustoconical surface I53 elements of'which are disposed at'a slight angle(approximately 4) to the plane I54 which intersects the surface I53 andis normal to the axis 4| of rotation of the tool 38. The frusto conicalsurface I53 in which the tip portio'ns'cf the teeth I50 lie may also bedescribed as facing away from and at an oblique angle to the axis 4| ofrotation of the tool 38 which may be referred to as an end mill roughingtool. The roughing tool 38 may be further described as comprising aplurality of blades I36 which are spaced circumferentially about theaxis 4| of rotation of the tool and have rows or series of teeth I50tips or 'apex'portions I5| of which extend below or project beyond workengaging surfaces I41 of associated presser feet I34 and lieapproximately in the frusto conical surface I53 in which lie the loci ofsaid tip portions of the teeth.

In order that the teeth I56 of the roughing tool 38 shall dip into theoutsole 32 as they rotatingly swing down in the frusto conical surfaceI53 over and from outside said outsole, the axis 4| of rotation of thetool 38 (Fig. 4) is forwardly tilted approximately 4 from the vertical,said axis being disposed at an acute angle to the face portion of theoutsole being roughened and intersecting the axis 68 of rotation of thesleeves 56, 58 in the vicinity of the plane I54 (Fig. 16). It will beapparent that when the teeth I50 of each of the blades I36 of theroughing tool 38 are in their lowermost positions the line I52 extendingalong the tipsof the teeth is approximately opposite and isapproximately parallel to the portion of the flesh face of the outsolepresented by the sleeves 56, 58 to the tool, said teeth because of theirentry into the work along a frusto conical path such as above describedperforming their roughing operation without'any substantial amount ofbridging action of the outsole lengthwise of its margin. Spaced opposingportions of the faces I66, I68 of the sleeves 56, 58 on the one hand andthe frusto conical surface I53 on the other hand may be referred to asan outsole receiving notch or gap I59 (Fig. 16) which curves generallyabout the axes of rotation 4| and 68 of the sleeves and the roughingtool and may be defined as arcuate.

The upright drive shaft I3I for the roughing tool 38 is rotatingl-ymounted in ball bearings I58 (Fig. 4) supported in a bracket or housingI60 which may be quickly and effectively swung or transferred between afull line poistion shown in Figs. 1 and 4 in which the tool is activeand an idle or inactive dash-line position (Fig. 1) in which the bladesI36 and/or the presser feet I34 of the tool are changed. The mechanismthrough which the tool is moved between its active and idle positionswill be described in detail later.

The edge gage 64 is illustrated as having a smooth cylindrical face I6I,which, if desirable, may be vertically ribbed, and a base portion I62(Figs. 4 and '7) fitting inside the inner sleeve 66 and secured to saidsleeve by a screw I64. When an outsole, the margin of which is ofuniform thickness, is being roughened, work engaging faces I65, I68(Fig. 7) of the sleeves 56,58 are in substantially horizontal alinement,as shown in full lines (Fig. 15), and when a shank reduced margin isbeing roughened the face I66 of the inner sleeve is raised with relationto the face I68 of the outer sleeve, as shown in dash-lines in Fig. 15.The upper ends or faces I66, I68 of the sleeves 56, 58, which areindependently yieldable lengthwise of their common axis 68 and may bedescribed as a multipart support, may be defined as lying in a planewhich is approximately parallel to the line I52 and accordingly parallelto opposing elements of the frusto conical "face I53.

The work engaging faces I66, I68 of the yieldable sleeves 56, 58 arecurved approximately about the axis 68 of rotation of the sleeves andmay be described as arcuate, said axis, as above explained, intersectingthe axis 4| of rotation of the tool in the vicinity of the plane I54(Fig. 16'). Since the sleeves 56, 58 are independently yieldable it willbe clear that the outsole marginal face being operated upon will bedisposed substantially parallel to opposite elements of the frustoconical surface I53 whether said marginal face is of uniform thicknessor is shank beveled. The cylindrical face I6I of the edge gage 84 may bedescribed as arcuate and positioned at one side of the gap or notch I59and within a projection of the frusto conical face I53 on a planepassing through said face IBI and normal to the axis M. The cylindricalface II of the edge gage 68 may also be described as being closer to theaxis 41 of rotation of the tool 38 than is the frusto conical surfaceI53, as being positioned between the said axis and the outsolesupporting portion of the sleeves 56, 59 or the outsole support, or asbeing positioned between portions of the sleeves and adjacent portionsof the axes 4| or 68.

The roughing tool 38 is preferably rotated in a direction opposite tothe direction of movement of the outsole past the tool and opposite tothe direction of rotation of the sleeves 56, 58, the surface speeds ofthe faces I66, I68 of the sleeves usually being considerably greaterthan the speed imparted to the outsole by the feed roll 68 and the feedwheel 62 which may also be referred to as a roll. As above stated thesleeves 56, 58 which constitute part of'the table may be referred to asa rotatable portion of said table. The axis of rotation 68 of the edgegage 64 is disposed approximately at right angles to the face 18 of thetable 52 and lies in a plane normal to the axis of the feed roll 88 atthe work-engaging portion of said feed roll.

Mounted upon a shoulder I18 (Figs. 3, 4 and I;

7) of the frame 18, and held in adjustment on said shoulder by a bindingscrew I12 (Figs. '1 and 8) screwed to the frame, is a drive supportingbeam I1 l which as hereinafter explained carries the edge gage 88 andhas rotatably mounted in it mechanism for rotating said gage, the beambeing held in different adjusted positions upon the shoulder I19 by aclamp plate I18 (Figs. 3, 4, 6 and 8) forced against said beam by ascrew I18 threaded into the frame 18 and passing through an elongatedslot I89 (Figs. 3 and 6) in the beam.

The motor 48 has a shaft I82 (Fig. l) to which is secured a pulley I84driving through a belt I86 (Figs. 1 and 2) a pulley I88 secured to ashaft I90 rotatable in bearings in the frame 18. Power for operating thework feeding and guiding unit 36 is supplied by the shaft I98 which hassecured to it a pulley I92 driving a belt I98 which passes over idlerpulleys I96 and drives a pulley I98 secured to the drive shaft I3I ofthe roughing tool 38. Fixed to the shaft H8 is a Worm 282 (Figs. and 11)which meshes with a worm gear 284 fixed to a vertical shaft 288 (Figs.'7, 9, 10 and 11) rotatingly mounted in the frame 18.

Operatively connected to the shaft 286 through a coupling 288 is anothervertical shaft 2I8 rotatable in the frame 18 and having secured to itgears 2I2, 2M. The gear 2I2 drives through an idler gear 2 I8, which ismounted upon a pivot pin 220 secured to the frame 18, a large gear 2 I 6forming part of the drive for the feed roll 69, the gear 2I4 formingpart of the drive for the work supportin sleeves 58, 58. The gear 2.!2also drives a large gear 222 (Figs. 3, 5, 8 and 9) forming part of thedrive for operating the toothed feed wheel 82. Secured to the upper endof the shaft 2I9 is a gear 22:1 which meshes with a wide gear 228secured to the lower end of a vertical shaft 228 journaled in the beamI14.

The edge gage 66 has a bore 238 (Fig. 9) for receiving the upper end ofa shaft 232 and is secured to said shaft by a screw 23 1. The shaft 232is rotatingly mounted in the beam I14 and has secured to its lower end agear 238 (Figs. 3, 7 and 8) meshing with an idler gear 283 (Figs. 1 and8) which is secured to a shaft 235 journaled in the beam and which isoperatively connected to the gear 226.

As above explained, the edge gage 86 is adjustable to a slight extenttogether with the beam I14 about the axis 68 of rotation of the sleeves58, 58 in order to expedite the feeding of the outsoles of differentsizes and/or shapes past the roughing tool 38. Such adjustment may bereadily effected by releasing theclamp screw I18 to release the clampplate I 16 and after swinging the beam I15 to the proper adjustedposition about the axis 88 again turning the screw I18 to force theclamp plate against the beam. The maximum angular adjustment of the edgegage 66 about the axis 68 of rotation is only a few degrees.

The resilient feed roll is depressible against spring action and is alsoinitially adjustable in directions 238 (Figs. 2, 6, 9 and 12) thetoothed feed wheel or roll 82 being fixed against vertical illOVilPlltby being initially adjustable, as will be herein explained, about acommon axis 240 of rotation of the shafts 286, 2I8 in order to vary theamount of cross feed force applied to the outsole. The toothed feedwheel 62 is formed integral with a shaft 242 (Figs. 1, 2, 6 and 9) whichis rotatingly mounted in a yoke 2M and has secured to its upper end abevel gear 228 meshing with a bevel gear 248 secured to an uppervertical shaft 258 journaled in the yoke and coupled to a lower verticalshaft 252 (Figs. 8 and 9) also rotatingly mounted in said yoke whichcomprises upper and lower parts secured together by screws 253 (Figs. 2,6 and 9). Secured to the lower end of the shaft 252 is the large gear222 which through mechanism above described is operated by thehorizontal drive shaft I98.

The feed roll 88 has a hard rubber periphery and a steel core 254 (Fig.9) pinned to a shaft 258 which is arranged approximately parallel to theupper surface 18 of the table 52 and is mounted for rotation in bushings258 in a carrier 288 pivotally mounted on a shaft 292 journaled inbushings 28 mounted in the frame 18. The forward end of the shaft 282has secured to it a bevel gear 2% (Figs. 6, 7, 9 and 12) meshing with abevel gear 268 secured to the upper end of a shaft 218 which isjournaled in the frame 18 and has secured to its lower end the largegear 2I6. The feed roll 88 is constantly urged bodily clockwise asviewed in 7 by a spring 212 (Figs. 1, 6, '7, 8 and 9) upper and lowerends of which are attached to a threaded pin 214 secured to the carrierand to a beam 213 (Figs. 1 and 8) attached to an adjustable lever 215mounted upon the frame 18. Clockwise movement of the carrier 260 uponthe shaft 282 (Fig. '7) and accordingly upward movement of the feed roll68 is limited by a screw 211 which is threaded into the frame 18 and hasits upper end normally engaged by the carrier.

The feed roll 69 is depressed against the action of the spring 212preparatory to presenting the outsole to the machine by depressing thetreadle and thus swinging a lever 218, operatively connected to thetreadle, counterclockwise as viewed in Fig. 7. The lever 218 has securedto its right end (Fig. 7) a stud 288 engaging in a slot 282 formed in alink 264 pivoted upon the pin 2I4.

Upon counterclockwise rotation of the lever 218' the stud 286 is forcedagainst the upper end of the slot 282 causing the link 284 to be movedupward and the carrier 266 to be swung counterclockwise (Fig. 7) aboutthe shaft 262.

During the outsole roughing operation the feed roll 66 is depresseddifferent distances against the action of the spring 212 from itsinitial raised position in accordance with the thickness of the outsoleand the portion of the outsole being operated upon, the link 264 beingraised or lowered with relation to the lever 218 by reason of the abovedescribed stud and slot connection between these members. The carrier266 for the feed roll 66 may be initially adjusted upon the shaft 262 inthe direction of the arrows 238 to bring it close to the edge gage 66 byrotating a rod 286 (Figs. 1, 3, 6, 7 and 12) which passes through a bore288 in one portion of the frame 18 and is threaded into another portionof said frame, the rod fitting in a notch 296 in a flange 292 of thecarrier and having secured to it a pair of collars 264 which engageopposite sides of said flange. Housed in the carrier 266 and secured tothe shaft 262 is a gear 296 (Figs. 7 and 12) operatively connectedthrough idler gears 296, 366 journaled in the carrier to a gear 362fixed to the shaft 256 to which the feed roll 66 is secured. With theabove construction it will be apparent that the feed roll 66 may beinitially adjusted in the direction of the arrows 236 to move said rollas near as possible without interference, to the edge gage 66.

As above explained, in order to vary the cross feed force applied to theoutsole during the portionof the yoke 244 has formed in it an arcuateslot 368 which is centered about the. common axis 246 of the shafts 266,2H) and through which passes a setsorew 3I2 threaded into the frame I8and having its head overlying a base of the yoke,

said setscrew, when tightened to force its head against. the yoke,serving to secure said yoke in its initially set position about saidaxis. The toothed feed wheel 62 may be described as being initiallyadjusted about the axis 246 which is disposed at approximately rightangles to the surface I6 of the table 52 and passes approximatelythrough the axisv of rotation of the feed roll 66 and through oppositebite portions of said roll and said wheel which may be referred to asoutsole feeding means spaced from and in advance of the roughing tool38.

Thelever 218 is journaled upon a pin 3I4 (Figs. 5, 7 and 8) secured tothe frame I8 and is operatively connected to the upper end of a rod 3I6(Figs. 1, 3 and which is constantly urged upward by a spring 3 I6 (Fig.1). The lower end of the rod, 316 is pivotally connected to the treadle54 which, is secured to a pin 326 fulcrumed in the. base-of the column46, upward movement of the treadle being limited by the engagement of ascrew 322, which is carried by a lug 323 secured to the pin, with saidbase. The rear end of the lever- 2 16 is operatively connected to thelink 284 and the forward portion of said lever overlies a depending lug324 (Figs. 3 and 5) secured by screws 326 to the bifurcated sleeveoperating arm I64. Upon depression of the threadle 54 the lever 218 isrotated counterclockwise as viewed in Figs. 3 and 7 causing the arm I64to Swing counterclockwise about its pivot pin I68 thereby lowering theinner sleeve 56 and then the outer sleeve 58 and depressing, throughmechanism above described, the feed roll 66 to enable the operator topresent an outsole between the tool 36 and the sleeves 56, 68 on the onehand and the feed roll 66 and the feed wheel 62 on the other hand.

The bracket I66 in which the tool 38 is r0- tatingly mounted issupported upon a threaded pivot pin 326 (Figs. 1, 2, 3 and 4) which issecured against rotation in upstanding bifurcated portions of the frame16 and onto which is threaded a nut portion 336 of a manually actuatedcam lever 332 which may also be described as a cam. Formed integral withthe bracket I66 is an arm 334 pivotally connected through an expansibleconnection 336 to one arm of a bell crank lever 333 mounted upon a pin346 supported by the frame I8. The bracket I66 may be swung upon the pin326 back to an idle or inactive position after swinging a latch 342,which is mounted upon a pivot pin 344 carried by the frame I8,counterclockwise as viewed in Fig. 4, against the action of a spring 346and away from a face 343 ofthe lever 333 and breaking a toggle 356formed by the lever and the connection 336. Also fulcrumed on the pin346 is a bell crank lever 362 an upstanding arm of which carries a roll354 and a horizontal arm 356 of which overlies a rearward projection ofthe latch 342, the upstanding arm of the lever 352 normally being heldagainst the frame I8 by. a spring 358.

When the manually actuated cam lever 332 is in its position illustratedin Fig. i and the tool 36 carried by the bracket I66 is in its activeposition said lever through its nut portion 336 draws the bifurcationsof the frame I8 against opposite sides of the bracket I66 and binds saidbracket rigidly to the frame. When it is desirable to change the tool 36the operator swings the cam lever 332 counterclockwise (Fig. 4) thusbacking the nut portion 336 off the threaded pin 328 and causing a rearedge of said lever to engage the roll 354 and also causing the bellcrank lever 352 and accordingly the latch 342 to swing counterclockwiseupon their associated pivot pins 366, 344 respectively against theaction of the springs 366, 346 with the result that the latch is movedout of contact with the surface 348 of the lever 336. The bracket I66 isthen manually swung rearward to its dash-line position shown in Fig. lpreparatory to working on the tool. After the tool has beenreconditioned and has been swung forward to its active position thelatch 362 is released to allow it to swing under the action of thespring 346 into engagement with the surface 348 of the bell crank lever336 thereby preventing the then straightened toggle 366 from, beingbroken. The manually actuated cam lever 332 is then swung clockwise toits position shown in Fig. 4 to bind the bracket I66 rigidly to theframe I6.

The roughened band 6! formed at the margin of the flesh side or face ofthe outsole 32 usually extends to the edge of the outsole, said edge ofthe outsole in the finished shoe hugging the shoe upper to produce whatis commonly referred to as close edge work.

In the manufacture of shoes having cement attached outsoles whichproject slightly beyond the bottoms of said shoes it is desirable thatprojecting margins of the outsoles shall be um'oughened and clean, thatis, free from cement. In the manufacture of outsoles 32A (Figs. 18 and22) 32B (Figs. 19 and 23) and 32C (Figs. 20 and 24) which are adaptedfor attachment to shoes of the type just referred to, it is desirable toform roughened bands 61A, 61B and 610 which stop short of the edges ofthe respective outsoles, the portions of the flesh sides 30A, 30B and30C of the outsoles adjacent to said edges comprising a chamfered strip360 such as illustrated in Figs. 18 and 22, a fiat countersunk strip 362such as illustrated in Figs. 19 and 23 or an unroughened strip 364 ofthe original flesh side 36C of the outsole as illustrated in Figs. 20and 24.

The outsoles 32A and 3213 may be simultaneously roughened and edgereduced by slightly modifying the edge gage 54 and the blades I36 of theroughing tool 38 of the above illustrated machine. The machine modifiedas illustrated in Fig. 18 comprises an edge gage 64A somewhat lower thanthe edge gage 64 and a roughing tool 38A having blades 136A each ofwhich has teeth |50A for forming the roughened band 67A and a chamferingtooth 61 for forming the chamfered strip 360.

The machine modified as illustrated in Fig. 19

comprises an edge gage 64B substantially identi- Having described theinvention, what I claim as new and desire to secure by Letters Patent ofthe United States is:

1. In an outsole roughing machine, a roughing tool rotatable about anaxis, said tool having teeth the loci of which, when the tool isrotated, lie substantially in a frusto conical surface, a work supportwhich is arranged in opposed relation to the tool, and means comprisingan edge gage for guiding an outsole upon said work support past thetool, portions of the edge gage engaged by the outsole being positionedbetween an adjacent portion of said axis of rotation of the tool and theportion of the support engaged by the outsole.

2. In a roughing machine, a roughing tool rotatable about an axis, saidtool having teeth edges of which lie substantially in a frusto conicalsurface generated about said axis, a support arranged in opposedrelation to the tool, and means comprising an edge gage for guiding anoutsole on the support past the tool, said axis being positioned asubstantial distance outside of the outsole being operated upon andbeing inclined at an acute angle to a general plane of the portion ofthe outsole being operated upon.

3. In a roughing machine, a roughing tool 1'0- 1 tatable about an axis,said tool having teeth edges of which lie substantially in a frustoconical surface centered at said axis, a support arranged in opposedrelation to the tool and yieldable in a rectilinear path inclined at aslight angle to said axis, and means comprising an edge gage for guidingan outsole over the support and past the tool, said axis of rotation ofthe tool at all times being positioned a substantial distance outside ofthe outsole being operated upon and being tilted 12 toward the outsoleat an acute angle to a portion of a face of said outsole being operatedupon.

4. In an outs-ole roughing machine, a tool rotatable about an axis, saidtool comprising a head carrying roughing teeth which, when the tool isrotated, travel approximately in a frusto conical surface which facesaway from said axis at an oblique angle thereto, a yieldable supportwhich is arranged opposite the frusto conical surface and is adapted toforce an outsole against said head and said roughing teeth, and meansfor guiding an outsole upon the support past the tool, said meanscomprising an edge gage provided with a cylindrical face which ispositioned adjacent to the work support and within a projection of saidfrusto conical surface on a plane passing through said cylindrical faceand disposed at right angles to the axis of rotation of the tool.

5. In a roughing machine, a roughing tool rotatable about an axis, saidtool comprising, a head carrying roughing teeth which, when the tool isrotated, travel approximately in a frusto conical surface which facesaway from said axis at an oblique angle thereto, a work support having aface which is positioned opposite said frusto conical surface and isarranged approximately in parallel relation to opposed elements of saidfrusto conical surface, and means comprising an edge gage which has aface for guiding an outsole upon the support past the tool, said face ofthe edge gage being positioned adjacent to said support and to saidfrusto conical surface and being arranged closer to said axis ofrotation of the tool than is said frusto conical surface.

6. In a roughing machine, a tool rotatable about an axis, said toolhaving teeth apex portions of which, when the tool is rotated, moveapproximately in a frusto conical surface which faces away from saidaxis at an oblique angle thereto, a work support positioned oppositesaid frusto conical surface, and means comprising an edge gage having awork engaging face for guiding an outsole upon said support past thetool, said face of the edge gage being positioned toward said axis froma projection of the frusto conical surface on a plane which is normal tothe axis of rotation of the tool and passes through said work engagingface.

7. In a roughing machine, a roughing tool rotatable about an axis, saidtool having teeth apex portions of which, when the tool is rotated, moveapproximately in a frusto conical surface which faces away from saidaxis at an oblique angle thereto, a support positioned opposite saidfrusto conical surface, and means comprising an edge gage having a facefor guiding an outsole mounted upon said support past the tool, saidface of the edge gage being positioned between the axis of rotation ofthe tool and the portion of the support engaged by the outsole.

8. In a roughing machine, a roughing tool rotatable about an axis, saidtool having teeth edges of which, when the tool is rotated, moveapproximately in a frusto conical surface which faces away from saidaxis at an oblique angle thereto, a support which is positioned oppositesaid frusto conical surface and forms an outsole receiving notchtherewith, said support being rotatable about an axis disposed at aslight angle to the axis of rotation of the tool and being yieldablelengthwise of said axis, and means comprising an edge gage having a facefor guiding an outsoie upon said support past the tool, said face of theedge gage lying toward said axis from a projection of the frusto conicalsurface on a plane

